Why it works: Corn and pepper match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and 5,324 recipes mention both. Both carry 2-nonenal, which smells fatty, green. The science ↓
The recipe
Ingredients
Contains: egg (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Make the base
In a bowl, mix corn starch and vinegar thoroughly.
Add boiling water and cook over boiling water until very thick and smooth.
Remove from heat and stir in egg yolks.
Finish the dressing
Once cooled, add oil, lemon juice, salt, and cayenne pepper.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Corn + peppertop 6% of all pairsAroma overlapstrongMentioned together5,324 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + peppertop 2% of all pairsAroma overlapstrongMentioned together27,039 recipes
Shared aroma: 2-nonenal (fatty, green).
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Vinegar + peppertop 6% of all pairsAroma overlapmoderateMentioned together27,805 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Corn + lemontop 8% of all pairsAroma overlapstrongMentioned together1,926 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + lemontop 9% of all pairsAroma overlapmoderateMentioned together43,327 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Corn starch
- Thickens the dressing into a smooth, stable body as it cooks in boiling water.
- Egg yolks
- Add richness and emulsifying lecithin that helps hold the oil suspended in the thickened base.
- Oil
- Provides fat and silkiness, giving the dressing a rich mouthfeel.
- Vinegar
- Adds acidity that brightens the flavour and balances the richness of the oil and yolks.
- Lemon juice
- Adds fresh acidity that sharpens flavour and balances the fat.
The step that matters
Cool before adding the oil. If the starch base is still hot when the yolks or oil go in, the yolks can scramble and the emulsion can break, leaving the dressing greasy and separated instead of smooth.
Flavor stand-ins for the lemon
How well each one fits the dish's main ingredients (egg, vinegar, corn, pepper):
- Limeabout as good a flavor fit
- Lemonthe original
- Cherryabout as good a flavor fit
Fit is the average pairing score against egg, vinegar, corn, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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